[1]WANG Tongqing,WANG Shufa,YANG Bo,et al.Analysis of Deformation Features in Shanxi Area Based on Gravity and GPS Measuerements[J].Journal of Seismological Research,2017,40(01):101-110.
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Analysis of Deformation Features in Shanxi Area Based on Gravity and GPS Measuerements
Journal of Seismological Research[ISSN 1000-0666/CN 53-1062/P] Volume:
40
Number of periods:
2017 01
Page number:
101-110
Column:
Public date:
2017-03-20
- Title:
- Analysis of Deformation Features in Shanxi Area Based on Gravity and GPS Measuerements
- CLC:
- P315.72
- DOI:
- -
- Abstract:
- We use campaign gravity and regional GPS data accumulated over the years to process and analyze 2009-2015 dynamic variation of gravity field of Shanxi rift zone and its adjacent areas based on the segment,line,face.Then we apply horizontal total gradient method to extract anomaly information from the dynamic variation of gravity field.Finally,we compare the gravity field and strain field in recent years on the same time scale to obtain the precise variation of crustal deformation in Shanxi area.The results show that:(1)Horizontal total-gradient gravity field has higher sensitivity than gravity anomaly.Both of their dynamic variations show more significant changes in the area of Yangquan-Datong near Hengshan fault,Liulengshan fault and Kouquan fault in northern Shanxi,the area of Linfen-Xiaxian near the Zhontiaoshan fault in southern Shanxi,and the area of Handan-Anyang near the Taihang mountain Shanqian faults in mid-eastern Shanxi;(2)The same time-scale gravity and strain field corresponded well from the comparative analysis.Joint analysis of gravity and strain field can help us to study the crustal deformation and seismogenic mechanisms generated by the changes of deep physical properties.
- References:
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Last Update:
2017-03-20